NEWS
Mike Palmerino Telvent DTN Senior Ag Meteorologist
Tue Apr 9, 2013 12:59 PM CDT

There has been an incredible difference in the character of the weather pattern over the central US during the early spring from 2012 to 2013. We have gone from record warmth in 2012 to some very cold weather in 2013--including some freeze damage to jointing wheat in Texas and Oklahoma. And in Iowa, the difference in the state average temperature in March of 2012 compared to March of 2013 is an astounding 23 degrees Fahrenheit.

Possibly the main reason for this incredible difference is the presence--or lack--of high latitude blocking. We have spoken of blocking before and its impact on the weather ...

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